T
thatbloke
A surface mount cable from a junction box on the lighting ring to a switch to operate a single wall lamp, it's double insulated 3 core braided flex.
Acceptable?
Acceptable?
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Sorry, can you be more specific about
The rest of the installation will probably be wired in this and so should your addition.Normally it would be minimum 1mm² twin and earth (PVC) cable.
I'm assuming the CPD for the circuit is 6amp???
3 core flex cable like THIS is OK. Again it should be 1mm². 0.75mm² is only just able to hack 6amps and the permanent wiring should be sized accordingly.
Can you find it on a supplier's site and provide a link.
The rest of the installation will probably be wired in this and so should your addition.Normally it would be minimum 1mm² twin and earth (PVC) cable.
I'm assuming the CPD for the circuit is 6amp???
3 core flex cable like THIS is OK. Again it should be 1mm². 0.75mm² is only just able to hack 6amps and the permanent wiring should be sized accordingly.
T
thatbloke
Thanks for the quick reply, it's very similar to this stuff, go to ''decorative'' at top of page then scroll down to the second cable on the list.
http://www.cablespecialists.co.uk/home.htm
The rest of the house is normal 1mm twin and earth , its just a surface mount drop to a switch that has been done in this flex , purely for aesthetic purposes.
it says it is good for 6 amps.
It is double insulated in that each core has two coats of insulating around it not including the braid.
http://www.cablespecialists.co.uk/home.htm
The rest of the house is normal 1mm twin and earth , its just a surface mount drop to a switch that has been done in this flex , purely for aesthetic purposes.
it says it is good for 6 amps.
It is double insulated in that each core has two coats of insulating around it not including the braid.
C
cumbriahandyman
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T
thatbloke
Nice one , Thanks Cumbrian.
Also, when applied to cable, it means that a conductor has two layers of insulation. This is a requirement of BS7671 for live conductors.
eg
"Meter tails" (6181Y) have two layers of insulation.
In twin and earth cables the live and neutral have individual insulation and these are both covered in the cable's outer sheath.
T
thatbloke
So why the need to have two layers? Why not just have one very thick layer?
I can see why twin and earth would need it if even just to keep all the cables together.
I can see why twin and earth would need it if even just to keep all the cables together.
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You can. For example Class II equipment can achieve this status either by using double insulation (2 layers) or reinforced insuation (1 thick layer).
T
thatbloke
C
cumbriahandyman
Stand by...
Just that the idea that this
dangling down a wall to a surface mounted switch is somehow aesthetic seems utterly bizarre.
A
Alarm
YUK
T
thatbloke
Ah I see, they are Edwardian brass toggle switches on an oak pattress on a 500 year old daub wall, so it was either that or grey twin and earth. This does actually look nicer than the grey T+E and suits the cottage better.
I did think about trying to bury the wiring in the wall but went against the idea of ripping into an old wall like this simply to bury wires in it, its been through two world wars and the black death and remained unscathed so I wasnt going to chase into it if I didnt have to.
Edit , It is dark brown the cable I used , the gold just looked too flash.
I did think about trying to bury the wiring in the wall but went against the idea of ripping into an old wall like this simply to bury wires in it, its been through two world wars and the black death and remained unscathed so I wasnt going to chase into it if I didnt have to.
Edit , It is dark brown the cable I used , the gold just looked too flash.
A
Alarm
In that contect, maybe not so yukkie.
Especially in the darker.
Especially in the darker.
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